Time-hopping spread-spectrum system for wireless optical communications | IEEE Journals & Magazine | IEEE Xplore

Time-hopping spread-spectrum system for wireless optical communications


Abstract:

This paper describes an optical wireless system based on time-hopping spread-spectrum techniques, as a first approach, at infrared wavelengths. It can be used either for ...Show More

Abstract:

This paper describes an optical wireless system based on time-hopping spread-spectrum techniques, as a first approach, at infrared wavelengths. It can be used either for low-speed sensor interconnections or as a return channel in a visible light communications system. The main advantage of this scheme is an improvement in the narrowband interference rejection capability and the number of simultaneous users supported, compared with other wireless optical standards. Moreover, a wide analysis is carried out about the mutual interference between time-hopping spread-spectrum systems and other infrared ones. Finally, some conclusions are drawn about some design parameters of the time-hopping system in order to allow its compatibility with preexisting optical devices.
Published in: IEEE Transactions on Consumer Electronics ( Volume: 55, Issue: 3, August 2009)
Page(s): 1083 - 1088
Date of Publication: 09 October 2009

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